package day09;

/*
 * Author: JacksonCoder
 * FileName: StringBuilderExample
 * Version: 1.0.0
 * Date: 2025/4/15
 */

public class StringBuilderExample {
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        sb.append("hello");
        sb.append(" ");
        sb.append("java");
        System.out.println(sb.toString()); // 输出 "hello java"
    }
}
